[PATCH] D99682: [SelectionDAG] Teach SelectionDAG::FoldConstantArithmetic to handle SPLAT_VECTOR

[Fraser Cormack via Phabricator via llvm-commits]

frasercrmck added a comment.

All looks reasonable to me. I'm not sure whether we should do one iteration for fixed-length SPLAT_VECTORs: it should be sound. I don't know what it would gain us given how infrequently it's used.

I'm also not sure whether there's another way of handling the CONCAT_VECTORs issue so hopefully someone else would be able to provide some insight there.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D99682/new/

https://reviews.llvm.org/D99682